Thanks for your answer, but I have allready read both of the links, but it doesn' t help me.

At the first link I can not continue at point 7, because I don't have a deployment methode and I can not set one. Its greyed out. (See picture in first post).
@7. Select Run to specify run settings.@

And the same problem is at the 2. link.
@The files to be installed are listed in the Deployment step, the Files to install for subproject field. The Local File Path field displays the location of the file on the development PC. The Remote Directory field displays the folder where the file is installed on the device. Text in red color indicates that the information is missing. Edit the qmake INSTALLS variable in the project .pro file to add the missing files.@

I have set the install variables with the path to the file in the .pro file (see first post), but they are not listed because there is no deployment methode.

I have tested a little bit more with the problem. And its possible for me to run the application from QT-Creator, when I copy the files manualy to the target PC. So I just need a way to copy the application to the targets folder before starting the application. Has someone a idea how to do that.